<?php
/**
 * Created by PhpStorm.
 * User: lenovo
 * Date: 2016/9/27
 * Time: 23:43
 */header('Content-type:text/html;;charset=utf-8');
const DISCOUNT = 0.8;
$fruit1 = '香蕉';
$fruit2 = '苹果';
$fruit3 = '橘子';
$fruit1_num = 2;
$fruit2_num = 1;
$fruit3_num = 3;
$fruit1_price = 7.99;
$fruit2_price = 6.99;
$fruit3_price = 3.99;
$fruit1_total = $fruit1_num * $fruit1_price;
$fruit2_total = $fruit2_num * $fruit2_price;
$fruit3_total = $fruit3_num * $fruit3_price;
$total = ($fruit1_total + $fruit3_total)*DISCOUNT;
$str = "<table>";
$str .="<tr><td>商品名称</td><td>购买数量（斤）</td><td>商品价格（元/斤）</td></tr>";
$str .="<tr> <td>$fruit1</td> <td>$fruit1_num</td> <td> $fruit1_price</td></tr>";
$str .="<tr> <td>$fruit2</td> <td>$fruit2_num</td> <td> $fruit2_price</td></tr>";
$str .="<tr> <td>$fruit3</td> <td>$fruit3_num</td> <td> $fruit3_price</td></tr>";
$str .="<tr><td colspan='3'>商品折扣：<span>".DISCOUNT."</span> </td></tr>";
$str .="<tr><td colspan='3'>打折后购买商品总价格：{$total}元</td> </tr>";
$str .= "<table>";
echo $str;